CN104935077B - For the Anti-electricity dazzling device and its control method of series capacitance type A.C. contactor - Google Patents
For the Anti-electricity dazzling device and its control method of series capacitance type A.C. contactor Download PDFInfo
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- CN104935077B CN104935077B CN201510233531.XA CN201510233531A CN104935077B CN 104935077 B CN104935077 B CN 104935077B CN 201510233531 A CN201510233531 A CN 201510233531A CN 104935077 B CN104935077 B CN 104935077B
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Abstract
The present invention discloses a kind of Anti-electricity dazzling device and its control method, Anti-electricity dazzling device includes electric energy conversion and storage element and sequentially connected analog acquisition unit, central control unit, half-bridge chopping voltage output control unit and power of alterating and direct current switch control unit, driving unit is connected between power of alterating and direct current switch control unit and central control unit, analog acquisition unit and electric energy conversion and storage element are respectively connected to alternating current, and electric energy conversion and storage element are connect respectively with central control unit and half-bridge chopping voltage output control unit.Central control unit can estimate the capacity of contactor according to the running current of acquisition A.C. contactor, the PWM duty cycle of driving circuit is set according to the capacity of contactor, when A.C. contactor occurs to shake electricity, anti-shake point device is by half-bridge chopping voltage output control unit come to contactor charge and discharge, the controllable DC voltage of output is made to be applied to contactor coil, ensures still reliably to be attracted when contactor shakes electricity.
Description
Technical field
The present invention relates to electronic circuit field more particularly to a kind of anti-shake Densos for series capacitance type A.C. contactor
It puts and its control method.
Background technology
A.C. contactor is commonly used in alternating current circuit, the current induced magnetic field flowed through using coil, so as to make contact
It is closed, to achieve the purpose that control load appliance.After energization, coil can generate powerful magnetic field, make the quiet iron in electromagnetic system
Core generates electromagnetic attraction armature, and makes with moving contact the action of switch or closure, and during power-off, magnetic force disappears, and contact restores again
To as former state：It is normally closed, it is closed, it is normally opened, it opens.Traditional A.C. contactor circuit is during use, due to electric power system
Unstable the phenomenon that instantaneous loss of pressure can occur, contactor is caused to discharge suddenly at runtime, the safety for affecting load circuit is steady
Fixed operation, has brought tremendous economic losses and security risk to continuous production type enterprise.
In order to solve this technical problem, the prior art accesses direct current when occurring to shake electricity to the A.C. contactor,
As shown in Figure 1, this processing mode has the disadvantages that：(1) it is compensation energy-saving to be directly output to serial capacitance for DC voltage
During A.C. contactor, since the serial capacitance Cs inside the contactor has the function of blocking circulation exchange, lead to DC voltage
There was only charging process during application, discharge off process, when Cs is full of, direct current is blocked on outside contactor coil KM, therefore is contacted
Device can only be attracted very short a period of time, can not be attracted for a long time, and then can not meet sets requirement of the user to the retention time.
(2) DC voltage of output is unadjustable, and the contactor of different manufacturers is had nothing in common with each other setting timing parameter, fixes a voltage
During output, voltage is higher to be easy to cause coil burnout, and low voltage is easy to cause contactor and cannot keep actuation.(3) work as direct current
Outside voltage can timing, need to test different contactors, whether can be reliably attracted with verifying voltage, lead to live tune
Heavy workload is tried, efficiency is low.
Therefore, it is necessary to a kind of new Anti-electricity dazzling device is provided to solve the above problems.
Invention content
The purpose of the present invention is to provide one kind can automatically adjust DC voltage size, have the A.C. contactor
It is charged and discharged the Anti-electricity dazzling device and its control method for series capacitance type A.C. contactor of function.
To achieve these goals, the technical solution adopted in the present invention is as follows：
A kind of Anti-electricity dazzling device for series capacitance type A.C. contactor, the Anti-electricity dazzling device include analog acquisition
Unit, power of alterating and direct current switch control unit, electric energy conversion and storage element, half-bridge chopping voltage output control unit, center
Control unit and driving unit, the analog acquisition unit and electric energy conversion and storage element are respectively connected to alternating current,
The analog acquisition unit and the central control unit are electrically connected, the electric energy conversion and storage element respectively with it is described
Central control unit and the half-bridge chopping voltage output control unit are electrically connected to provide electric energy, and the power of alterating and direct current is cut
It changes control unit to be connected between the analog acquisition unit and A.C. contactor circuit, the driving unit is connected to described
Between central control unit and the power of alterating and direct current switch control unit, the half-bridge chopping voltage output control unit and institute
State the electric connection of power of alterating and direct current switch control unit.
Preferably, the alternating current includes firewire and zero curve, and the analog acquisition unit includes power pack, voltage
Converter and first resistor, the current transformers in series is on the firewire, the voltage changer and the first resistor
It is connected in series between the firewire and the zero curve.
Preferably, the electric energy conversion and storage element include C/DC power modules, the first DC/DC power modules, second
DC/DC power modules and energy-storage module, the C/DC power modules respectively with the first DC/DC power modules, described second
DC/DC power modules and the energy-storage module are electrically connected, the energy-storage module respectively with the first DC/DC power modules and
The 2nd DC/DC power modules are electrically connected.
Preferably, the energy-storage module includes rechargeable battery or super capacitor.
Preferably, the Anti-electricity dazzling device includes the first relay and the second relay, and first relay includes the
One coil and the first dynamic circuit breaker switch, second relay include the second coil, the first dynamic circuit connector switch and the second dynamic circuit connector switch.
Preferably, the power of alterating and direct current switch control unit includes first dynamic circuit breaker switch, first dynamic circuit connector is opened
Pass, second dynamic circuit connector switch, the first electronic switch, the second electronic switch and third electronic switch, described first to third electricity
Sub switch includes the first terminals, the second terminals and control terminal, and the first dynamic circuit breaker switch is connected on the firewire, institute
It states the first electronic switch to connect with the first dynamic circuit breaker switch in parallel, the first end and the analog quantity of the first dynamic circuit breaker switch
Collecting unit connects, and second electronic switch and first dynamic circuit connector switch are connected in series in the of the first dynamic circuit breaker switch
Between first terminals of two ends and the half-bridge chopping voltage output control unit, the third electronic switch and described second
Dynamic circuit connector switch is connected in series between the second terminals of the zero curve and the half-bridge chopping voltage output control unit.
Preferably, the half-bridge chopping voltage output control unit includes the 4th electronic switch, the 5th electronic switch and arteries and veins
Rush width modulated (PWM) driving circuit, the 4th electronic switch and the 5th electronic switch include the first terminals, the
Two terminals and control terminal, the first terminals of the 4th electronic switch are connect with the first DC/DC power modules, described
Second terminals of the 4th electronic switch are connect with the first terminals of the 5th electronic switch, the pulse width modulation
(PWM) signal input part of driving circuit is connect with the central control unit, and the pulse width modulates (PWM) driving circuit
Control terminal of the signal output end respectively with the 4th electronic switch, the 5th electronic switch connect, wherein, the described 4th
Second terminals of electronic switch form the first terminals of the half-bridge chopping voltage output control unit, the 5th electronics
Second terminals of switch form the second terminals of the half-bridge chopping voltage output control unit.
Preferably, the driving circuit includes relay drive circuit, the first coil, second coil and electronics
Switch driving circuit, the signal input part of the electronic switch driving circuit are connect with the central control unit, the electronics
The signal output end of switch driving circuit respectively with first electronic switch, the second electronic switch and the third electronic switch
Control terminal connection, the signal input part of the relay drive circuit connect with the central control unit, the relay
First end of the signal output end of driving circuit respectively with the first end of the first coil, second coil is connect, described
The second end of first coil and the second end of second coil ground connection.
The present invention also provides a kind of control methods of the Anti-electricity dazzling device, include the following steps：
A) system initialization is carried out；
B) preparation stage：It detects and calculates the alternating voltage of the alternating current and the alternating current of ac circuit, detection storage
Whether energy module is charged, show that the half-bridge chopping voltage output control is single according to the alternating voltage and alternating current calculating
The voltage output duty ratio of member controls the driving unit to work；
C) monitoring phase：Detect whether the alternating current shakes electricity, i.e., described alternating voltage whether falls suddenly and the friendship
Whether galvanic electricity stream increases suddenly, if shaking electricity, controls the driving circuit, half-bridge chopping voltage output control unit work,
Start the power of alterating and direct current switch control unit, direct current is cut to the A.C. contactor circuit；
D) switch step：It detects abnormal alternating voltage and whether alternating current holds time in pre-set rolling electricity
It is interior to restore normal, if restoring normal start restarts delay, alternating current is cut to the A.C. contactor circuit, if not restoring normal
Start release delay, make the A.C. contactor down circuitry；
E) step b) is gone to.
Compared with prior art, the present invention is used for the Anti-electricity dazzling device and its control method of series capacitance type A.C. contactor
Advantageous effect be：The electric energy conversion and storage element can convert alternating current to direct current storage, the center control
Unit processed can estimate the capacity of contactor according to the running current of acquisition A.C. contactor, and the capacity according to contactor comes
The PWM duty cycle of driving circuit is set, when A.C. contactor occurs to shake electricity, anti-shake point device is exported by half-bridge chopping voltage
Control unit is come to contactor charge and discharge, and the controllable DC voltage of output is made to be applied to contactor coil, ensures contactor
It is still reliably attracted when shaking electricity.
Description of the drawings
Fig. 1 is the circuit diagram of Anti-electricity dazzling device in the prior art；
The circuit structure block diagram of Fig. 2 Anti-electricity dazzling devices of the present invention and A.C. contactor；
Fig. 3 is the circuit diagram of Anti-electricity dazzling device of the present invention；
Fig. 4 is the flow chart of the control method of Anti-electricity dazzling device of the present invention；
Fig. 5 is the control flow chart of preparation stage of the present invention；
Fig. 6 is the control flow chart of monitoring phase of the present invention；
Fig. 7 is the control flow chart of switch step of the present invention.
It is respectively marked in figure as follows：1st, analog acquisition unit；2nd, power of alterating and direct current switch control unit；3rd, electric energy conversion and
Storage element；301st, energy-storage module；4th, half-bridge chopping voltage output control unit；5th, driving unit；6th, A.C. contactor circuit；
L, firewire；N, zero curve；TA, power pack；TV, voltage changer；R1, first resistor；R2, second resistance；L1, First Line
Circle；L1_1, the first dynamic circuit breaker switch；L2, the second coil；L2_1, the first dynamic circuit connector switch；L2_2, the second dynamic circuit connector switch；S1, first
Electronic switch；S2, the second electronic switch；S3, third electronic switch；S4, the 4th electronic switch；S5, the 5th electronic switch；
Csuper, super capacitor；D1, the first diode；D2, the second diode.
Specific embodiment
The present invention is further described below with reference to specific embodiment.
It please refers to Fig.1 to shown in Fig. 7, the present invention includes simulation for the Anti-electricity dazzling device of series capacitance type A.C. contactor
Measure collecting unit 1, power of alterating and direct current switch control unit 2, electric energy conversion and storage element 3, the output control of half-bridge chopping voltage
Unit 4, central control unit and driving unit 5, the analog acquisition unit 1 and electric energy conversion and storage element 3 divide
Other incoming transport electricity, the analog acquisition unit 1 are electrically connected with the central control unit, the electric energy conversion and storage
Unit 3 is electrically connected with the central control unit and the half-bridge chopping voltage output control unit 4 to provide electric energy respectively,
The power of alterating and direct current switch control unit 2 is connected between the analog acquisition unit 1 and A.C. contactor circuit 6, institute
It states driving unit 5 to be connected between the central control unit and the power of alterating and direct current switch control unit 2, the half-bridge is cut
Wave voltage output control unit 4 is electrically connected with the power of alterating and direct current switch control unit 2.
Wherein, the central control unit includes microprocessor and its peripheral circuit, and the alternating current includes firewire L and zero
Line N, the analog acquisition unit 1 include power pack TA, voltage changer TV and first resistor R1, the current transformation
Device TA is connected on the firewire L, and the voltage changer TV and first resistor R1 is connected in series in the firewire L and institute
It states between zero curve N.
The electric energy conversion and storage element 3 include AC/DC power modules, the first DC/DC power modules, the 2nd DC/DC
Power module and energy-storage module 301, the AC/DC power modules respectively with the first DC/DC power modules, described second
DC/DC power modules and the energy-storage module 301 are electrically connected, the energy-storage module 301 respectively with the first DC/DC power supplys
Module and the 2nd DC/DC power modules are electrically connected.The energy-storage module 301 includes rechargeable battery or super capacitor
Csuper.In the present embodiment, the AC/DC power modules convert alternating current to 14V direct currents, and 14V direct currents pass through institute
It states the first DC/DC power modules to be converted into 96V direct currents and supply electricity to the half-bridge chopping voltage output control unit 4 powering, 14V direct currents
Electricity is converted into 5V direct currents by the 2nd DC/DC power modules and supplies electricity to the central control unit power supply.
In the present embodiment, the energy-storage module 301 is connected with the first diode D1, institute with the AC/DC power modules
The anode for stating the first diode D1 is connect with the DC voltage output end of the AC/DC power modules, the moon of the first diode D1
Pole is connect with the power input of the first DC/DC power modules, and the energy-storage module 301 is by super capacitor Csuper, the two or two
Pole pipe D2 and second resistance R2 compositions, the second diode D2 and second resistance R2 are connected in parallel, the super capacitor
The first end of Csuper is connect with the anode of the second diode D2, the second end ground connection of the super capacitor Csuper, and the two or two
The cathode of pole pipe D2 is connect with the cathode of the first diode D1.
The Anti-electricity dazzling device includes the first relay and the second relay, and first relay includes first coil L1
L1_1 is switched with the first dynamic circuit breaker, second relay includes the second coil L2, the first dynamic circuit connector switch L2_1 and the second dynamic circuit connector and opens
Close L2_2.
In the present invention, the power of alterating and direct current switch control unit 2 includes first dynamic circuit breaker switch L1_1, described the
One dynamic circuit connector switch L2_1, second dynamic circuit connector switch L2_2, the first electronic switch S1, the second electronic switch S2 and third electronic cutting
S3 is closed, described first to third electronic switch S3 includes the first terminals, the second terminals and control terminal, first dynamic circuit breaker
Switch L1_1 is connected on the firewire L, and the first electronic switch S1 is connected in parallel with first dynamic circuit breaker switch L1_1, institute
State the first dynamic circuit breaker switch L1_1 first end connect with the analog acquisition unit 1, the second electronic switch S2 with it is described
The second end that first dynamic circuit connector switch L2_1 is connected in series in the first dynamic circuit breaker switch L1_1 is exported with the half-bridge chopping voltage
Between first terminals of control unit 4, the third electronic switch S3 is connected in series in second dynamic circuit connector switch L2_2
Between second terminals of the zero curve N and the half-bridge chopping voltage output control unit 4.
The half-bridge chopping voltage output control unit 4 includes the 4th electronic switch S4, the 5th electronic switch S5 and pulse
Width-modulated drive circuit, the 4th electronic switch S4 and the 5th electronic switch S5 include the first terminals, second
Terminals and control terminal, the first terminals of the 4th electronic switch S4 are connect with the first DC/DC power modules, described
The second terminals of 4th electronic switch S4 are connect with the first terminals of the 5th electronic switch S5, the pulse width tune
The signal input part of driving circuit processed is connect with the central control unit, and the signal of the pulse width modulation drive circuit is defeated
Control terminal of the outlet respectively with the 4th electronic switch S4, the 5th electronic switch S5 is connect, wherein, the 4th electronics
The second terminals of switch S4 form the first terminals of the half-bridge chopping voltage output control unit 4, the 5th electronics
The second terminals of switch S5 form the second terminals of the half-bridge chopping voltage output control unit 4.
The driving circuit includes relay drive circuit, the first coil L1, the second coil L2 and electronic cutting
Driving circuit is closed, the signal input part of the electronic switch driving circuit is connect with the central control unit, the electronic cutting
Close driving circuit signal output end respectively with the first electronic switch S1, the second electronic switch S2 and the third electronic cutting
Close the control terminal connection of S3, the signal input part of the relay drive circuit connect with the central control unit, it is described after
The signal output end of electrical apparatus driving circuit connects respectively with the first end of the first coil L1, the first end of the second coil L2
It connects, the second end ground connection of the second end of the first coil L1 and the second coil L2.
As shown in figure 3, when A.C. contactor circuit 6 is powered, the coil KM is powered, the corresponding dynamic circuit breaker switches of coil KM
It disconnects, in capacitance Cs access circuits, the corresponding dynamic circuit connector switches of coil KM are closed, and load circuit is connected.When alternating current occurs to shake point
When, the energy-storage module 301 can give the first DC/DC power modules and the 2nd DC/DC power modules to power, and described first
DC/DC power modules can power to the A.C. contactor circuit 6, and the 2nd DC/DC power modules are controlled to the center
Unit power supply processed.
The control method of Anti-electricity dazzling device of the present invention includes the following steps：
A) system initialization is carried out；
B) preparation stage：It detects and calculates the alternating voltage of the alternating current and the alternating current of ac circuit, detection storage
Whether energy module 301 is charged, and the half-bridge chopping voltage output control is obtained according to the alternating voltage and alternating current calculating
The voltage output duty ratio of unit 4 processed controls the driving unit 5 to work；
C) monitoring phase：Detect whether the alternating current shakes electricity, i.e., described alternating voltage whether falls suddenly and the friendship
Whether galvanic electricity stream increases suddenly, if shaking electricity, the driving circuit, the half-bridge chopping voltage output control unit 4 is controlled to work,
Start the power of alterating and direct current switch control unit 2, direct current is cut to the A.C. contactor circuit 6；
D) switch step：It detects abnormal alternating voltage and whether alternating current holds time in pre-set rolling electricity
It is interior to restore normal, if restoring normal start restarts delay, alternating current is cut to the A.C. contactor circuit 6, if not restoring just
Often start release delay, power off the A.C. contactor circuit 6；
E) step b) is gone to.
The control process of wherein described preparation stage is as shown in figure 5, the analog acquisition unit 1 passes through voltage changer
The voltage and current of control loop is converted into small voltage signal, i.e. alternating voltage uac and alternating current by TV and power pack TA
Iac is flowed, and alternating voltage uac and alternating current iac are delivered to the central control unit, by central control unit
Analog to digital conversion circuit is converted to digital signal, electricity when calculating power supply terminal voltage and contactor operation by the algorithm of microprocessor
The size of stream judges whether electric current is all higher than setting value when power supply terminal voltage and contactor are run, and is set if it is not, will then prepare mark
FALSE is set to, if so, judging to prepare whether mark is TRUE, then the preparation stage completes if TRUE, if not TRUE
Then judge whether super capacitor Csuper is fully charged, it is FALSE that will prepare traffic sign placement if underfill, if straight full of judging
Whether galvanic electricity pressure, which calculates, finishes and sets duty ratio, if it is not, it is FALSE that will then prepare traffic sign placement, if so, driving S1 is led
It is logical, the first dynamic circuit breaker switch L1_1 is driven to disconnect, the first dynamic circuit connector switch L2_1 and the second dynamic circuit connector switch L2_2 is driven to lead
Logical, PWM drive circuit sets duty ratio, and it is TRUE that will finally prepare traffic sign placement, and the preparation stage completes.Wherein, PWM drives
Circuit can be such that S4 and S5 is not simultaneously turned on according to the duty ratio alternate conduction and shutdown, the S4 and S5 of setting, when S4 is connected
When S5 is turned off, the capacitance Cs chargings in the A.C. contactor circuit 6, voltage is applied to coil KM both ends, when S4 shutdowns S5 is led
When logical, the capacitance Cs in the A.C. contactor circuit 6 is discharged by coil KM.
The control process of the monitoring phase is as shown in fig. 6, judge to prepare whether mark is TRUE, if then judging
Whether switching mark is FALSE, if not FALSE, whether detection uac falls more than the 20% of rated voltage and slowly drop suddenly
If to rated voltage 80% hereinafter, detect again iac whether suddenly increase rated current more than 100%, if close S1,
And start anti-shake delay (0.16ms), and being connected S2 and S3 if anti-shake delay time terminates, anti-shake is held time counter O reset,
Switching mark is set as TRUE, monitoring phase completes.
The control process of the switch step is as shown in fig. 7, judge whether switching mark is TRUE, if judging anti-shake again
Whether delay time terminates, and judges whether uac restores normal if terminating, if uac normally turns off S2 and S3, makes the first dynamic circuit connector
Switch L2_1 and the second dynamic circuit connector switch L2_2 are disconnected and are started and restart delay (2ms), are exchanged and are connect if restarting delay time and terminating
Again incoming transport electricity, conducting S1 make the first dynamic circuit breaker switch L1_1 closures, switching mark are set as FALSE tentaculum circuit 6,
It is FALSE that will prepare traffic sign placement, and switch step terminates；S2 and S3 are turned off if uac is abnormal, the first dynamic circuit connector is made to switch L2_1
It is disconnected with the second dynamic circuit connector switch L2_2 and starts release delay (20ms), the A.C. contactor circuit if the release delay time terminates
6 tripping power-off, are connected S1, are closed the first dynamic circuit breaker switch L1_1, switching mark is set as FALSE, will prepare traffic sign placement
For FALSE, switch step terminates.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in attached drawing
What is shown is also one of embodiments of the present invention, and practical structure is not limited thereto.So if common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (6)
1. a kind of Anti-electricity dazzling device for series capacitance type A.C. contactor, which is characterized in that the Anti-electricity dazzling device includes
Analog acquisition unit, power of alterating and direct current switch control unit, electric energy conversion and storage element, the output control of half-bridge chopping voltage
Unit, central control unit and driving unit, the analog acquisition unit and electric energy conversion and storage element connect respectively
Enter alternating current, the analog acquisition unit is electrically connected with the central control unit, the electric energy conversion and storage element
It is electrically connected to provide electric energy, the friendship with the central control unit and the half-bridge chopping voltage output control unit respectively
DC power supply switch control unit is connected between the analog acquisition unit and A.C. contactor circuit, the driving unit
It is connected between the central control unit and the power of alterating and direct current switch control unit, the half-bridge chopping voltage output control
Unit processed is electrically connected with the power of alterating and direct current switch control unit；
The electric energy conversion and storage element include AC/DC power modules, the first DC/DC power modules, the 2nd DC/DC power supply moulds
Block and energy-storage module；The energy-storage module includes super capacitor, and the AC/DC power modules are electric with the first DC/DC respectively
Source module, the 2nd DC/DC power modules and the energy-storage module are electrically connected, and the energy-storage module is respectively with described first
DC/DC power modules and the 2nd DC/DC power modules are electrically connected；
The half-bridge chopping voltage output control unit includes the 4th electronic switch, the 5th electronic switch and pulse width modulation and drives
Dynamic circuit, the 4th electronic switch and the 5th electronic switch include the first terminals, the second terminals and control terminal,
First terminals of the 4th electronic switch are connect with the first DC/DC power modules, and the of the 4th electronic switch
Two terminals are connect with the first terminals of the 5th electronic switch, the signal input of the pulse width modulation drive circuit
End is connect with the central control unit, and the signal output end of the pulse width modulation drive circuit is electric with the described 4th respectively
Sub switch, the connection of the control terminal of the 5th electronic switch, wherein, the second terminals of the 4th electronic switch form described
First terminals of half-bridge chopping voltage output control unit, the second terminals of the 5th electronic switch form the half-bridge
Second terminals of chopping voltage output control unit；
The A.C. contactor circuit includes coil KM, capacitance Cs and the corresponding dynamic circuit breaker switches of coil KM；When A.C. contactor electricity
When road is powered, the coil KM is powered, and the corresponding dynamic circuit breaker switches of coil KM disconnect, and in capacitance Cs access circuits, coil KM is corresponded to
Dynamic circuit connector switch be closed, load circuit connect；
Pulse width modulation drive circuit can be such that the 4th electronic switch and the 5th electronic switch replaces according to the duty ratio of setting
Conducting and shutdown, the 4th electronic switch are not simultaneously turned on the 5th electronic switch, when the 5th electricity of the 4th electronic switch conducting
When sub switch turns off, the capacitor charging in the A.C. contactor circuit, voltage is applied to ac contactor coil both ends, when the
When four electronic switches turn off the conducting of the 5th electronic switch, the capacitance in the A.C. contactor circuit is discharged by coil KM.
2. Anti-electricity dazzling device as described in claim 1, which is characterized in that the alternating current includes firewire and zero curve, the mould
Analog quantity collecting unit includes power pack, voltage changer and first resistor, and the current transformers in series is in the firewire
On, the voltage changer and the first resistor are connected in series between the firewire and the zero curve.
3. Anti-electricity dazzling device as claimed in claim 2, which is characterized in that the Anti-electricity dazzling device includes the first relay and the
Two relays, first relay include first coil and the first dynamic circuit breaker and switch, second relay include the second coil,
First dynamic circuit connector switchs and the second dynamic circuit connector switch.
4. Anti-electricity dazzling device as claimed in claim 3, which is characterized in that the power of alterating and direct current switch control unit includes institute
State the first dynamic circuit breaker switch, first dynamic circuit connector switch, second dynamic circuit connector switch, the first electronic switch, the second electronic switch and
Third electronic switch, described first to third electronic switch includes the first terminals, the second terminals and control terminal, and described the
One dynamic circuit breaker switch is connected on the firewire, and first electronic switch is connect with the first dynamic circuit breaker switch in parallel, and described the
The first end of one dynamic circuit breaker switch is connect with the analog acquisition unit, and second electronic switch is switched with first dynamic circuit connector
It is connected in series in the second end and the first terminals of the half-bridge chopping voltage output control unit of the first dynamic circuit breaker switch
Between, the third electronic switch is connected in series in the zero curve with second dynamic circuit connector switch and the half-bridge chopping voltage is defeated
Go out between the second terminals of control unit.
5. Anti-electricity dazzling device as claimed in claim 4, which is characterized in that the driving unit include relay drive circuit,
The first coil, second coil and electronic switch driving circuit, the signal input part of the electronic switch driving circuit
Connect with the central control unit, the signal output end of the electronic switch driving circuit respectively with first electronic cutting
It closes, the second electronic switch is connected with the control terminal of the third electronic switch, the signal input part of the relay drive circuit
Connect with the central control unit, the signal output end of the relay drive circuit respectively with the first coil first
The second end ground connection of end, the first end connection of second coil, the second end of the first coil and second coil.
6. a kind of control method of the Anti-electricity dazzling device as described in claim 1 to 5 is any, which is characterized in that include the following steps：
A) system initialization is carried out；
B) preparation stage：It detects and calculates the alternating voltage of the alternating current and the alternating current of ac circuit, detect energy storage mould
Whether block is charged, and the half-bridge chopping voltage output control unit is obtained according to the alternating voltage and alternating current calculating
Voltage output duty ratio controls the driving unit to work；
C) monitoring phase：Detect whether the alternating current shakes electricity, i.e., described alternating voltage whether falls suddenly and the alternating current
Whether stream increases suddenly, if shaking electricity, controls the driving unit, half-bridge chopping voltage output control unit work, starts
The power of alterating and direct current switch control unit cuts direct current to the A.C. contactor circuit；
D) switch step：It is interior extensive whether the abnormal alternating voltage of detection and alternating current hold time in pre-set rolling electricity
It is multiple normal, if restoring normal start restarts delay, alternating current is cut to the A.C. contactor circuit, if not restoring normally to start
Release delay makes the A.C. contactor down circuitry;
E) step b) is gone to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233531.XA CN104935077B (en) | 2015-05-08 | 2015-05-08 | For the Anti-electricity dazzling device and its control method of series capacitance type A.C. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510233531.XA CN104935077B (en) | 2015-05-08 | 2015-05-08 | For the Anti-electricity dazzling device and its control method of series capacitance type A.C. contactor |
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| Publication Number | Publication Date |
|---|---|
| CN104935077A CN104935077A (en) | 2015-09-23 |
| CN104935077B true CN104935077B (en) | 2018-06-12 |
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| CN105429104B (en) * | 2015-11-26 | 2018-03-02 | 江苏国网自控科技股份有限公司 | A kind of new low-tension motor protection and Anti-electricity dazzling device and its control method |
| CN106208339B (en) * | 2016-07-20 | 2019-04-12 | 合肥联信电源有限公司 | A kind of compensation motor anti-swing electrical system |
| CN107068488B (en) * | 2016-11-23 | 2019-07-30 | 江苏国网自控科技股份有限公司 | Current source formula contactor Anti-electricity dazzling device and its control method |
| GB201811536D0 (en) * | 2018-07-13 | 2018-08-29 | Ge Aviat Systems Ltd | Battery power source |
| CN108983116B (en) * | 2018-09-14 | 2024-01-09 | 江苏国网自控科技股份有限公司 | Single-phase and multi-phase electricity-shaking simulation generating device based on combined electricity-shaking generating instrument and control method thereof |
| CN114005703B (en) * | 2021-11-08 | 2024-07-02 | 江苏安科瑞电器制造有限公司 | Anti-interference system of self-matching alternating-current contactor |
| CN117220241B (en) * | 2023-11-09 | 2024-04-05 | 深圳市中电电力技术股份有限公司 | Self-adaptive motor control loop anti-interference device and method |
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| CN103633860A (en) * | 2013-11-26 | 2014-03-12 | 江苏国网自控科技股份有限公司 | Adaptive control system and control method of anti-interference electricity device |
| CN204928360U (en) * | 2015-05-08 | 2015-12-30 | 江苏国网自控科技股份有限公司 | A prevent shaking electric installation for series capacitance formula ac contactor |
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| CN103633860A (en) * | 2013-11-26 | 2014-03-12 | 江苏国网自控科技股份有限公司 | Adaptive control system and control method of anti-interference electricity device |
| CN204928360U (en) * | 2015-05-08 | 2015-12-30 | 江苏国网自控科技股份有限公司 | A prevent shaking electric installation for series capacitance formula ac contactor |
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